A nurse is preparing to administer acetaminophen 400 mg PO to an adolescent. Available is acetaminophen liquid 160 mg/5 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["13"]
To calculate the dosage of acetaminophen liquid required, one must use the formula: (desired dose / available dose) x volume of available dose. For the adolescent who needs 400 mg of acetaminophen, and with the available acetaminophen liquid concentration of 160 mg per 5 mL, the calculation would be: (400 mg / 160 mg) x 5 mL. This simplifies to 2.5 x 5 mL, which equals 12.5 mL.
Answer: 13 mL (rounded off to the nearest whole number)
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Related Questions
Correct Answer is ["2.1"]
Explanation
To calculate the dosage of procaine penicillin G for the child, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 55 pounds, which is equivalent to 25 kilograms (55 ÷ 2.2). Next, multiply the child's weight in kilograms by the prescribed dosage of 50,000 units/kg, resulting in a total dosage of 1,250,000 units (25 kg × 50,000 units/kg). Finally, divide the total dosage by the concentration of the available medication, 600,000 units/mL, to find the volume to administer. This results in approximately 2.08 mL (1,250,000 units ÷ 600,000 units/mL). Therefore, the nurse should administer 2.1 mL.
Correct Answer is ["0.65"]
Explanation
To calculate the dosage of prochlorperazine that the nurse should administer, we first convert the child's weight from pounds to kilograms, knowing that 1 kilogram is approximately 2.2 pounds. The child weighs 55 pounds, which is equivalent to 55 / 2.2 = 25 kilograms (rounded to the nearest whole number for simplicity). Next, we multiply the child's weight in kilograms by the dosage prescribed, which is 0.13 mg/kg. So, 25 kg * 0.13 mg/kg = 3.25 mg. Finally, since the available medication is 5 mg/mL, we divide the total milligrams needed by the concentration, resulting in 3.25 mg / 5 mg/mL = 0.65 mL. Therefore, the nurse should administer 0.65 mL, rounded to the nearest hundredth.
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